{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["Chemical", "Disease"], "input": "Renal blood flow ( RBF ) increased during fenoldopam - induced hypotension 11 + / - 7 per cent and decreased 21 + / - 8 per cent during sodium nitroprusside - induced hypotension ( P less than 0 . 01 ) ."}
{"Chemical": ["fenoldopam", "sodium", "nitroprusside"], "Disease": ["hypotension"]}